| studies on nematode infections of beef cattle in new south wales. | the occurrence and seasonal trends of nematode parasite infections in beef cattle on the tablelands and north coast regions of new south wales are described, based on worm counts from 627 spring-born steers slaughtered at 2-monthly intervals from 6 to 24 months of age. the predominant parasites were ostertagia ostertagi, trichostrongylus axei and cooperia spp. large burdens of adult ostertagia were seen in 12-month-old animals in late winter and early spring, and later in 18- to 20-month-old cat ... | 1977 | 614021 |
| benzimidazole resistance in trichostrongylus axei in australia. | | 1992 | 1441136 |
| seasonal changes in the structure of nematode populations of cattle in new south wales in relation to inhibited larval development. | pasture plots in 3 climatic regions were contaminated with worm eggs of ostertagia ostertagi, trichostrongylus axei, haemonchus spp and cooperia spp in the autumn, winter and spring. successive pairs of parasite-free calves were grazed on the plots for 7 to 10 days at 4-week intervals and then killed for worm counts 14 days after their removal from pasture. on the northern tablelands of new south wales, irrespective of the season of pasture contamination, the degree of inhibition of o. ostertagi ... | 1980 | 7436895 |
| availability of gastro-intestinal nematode larvae to sheep following winter contamination of pasture with six nematode species on the northern tablelands of new south wales. | this experiment was designed to determine the infective consequences of winter pasture contamination by sheep infected with 6 species of trichostrongylid gastro-intestinal nematode (gin) at armidale in the new england region of nsw. ten helminthologically inert pasture plots were contaminated using 'donor' sheep harbouring artificial infections of haemonchus contortus, trichostrongylus colubriformis, trichostrongylus vitrinus, trichostrongylus axei, nematodirus spathiger and teladorsagia circumc ... | 2009 | 19070435 |
| the relative contributions of t. colubriformis, t. vitrinus, t. axei and t. rugatus to sheep infected with trichostrongylus spp. on the northern tablelands of new south wales. | this survey was designed to determine the spatial and temporal distribution and the relative contributions of trichostrongylus colubriformis, trichostrongylus vitrinus, trichostrongylus axei and trichostrongylus rugatus to sheep infected with trichostrongylus spp. on the northern tablelands of nsw. thirty completed larval cultures were collected from a commercial parasitology laboratory servicing the northern tablelands of nsw between june and december 2007. cultures were selected at random from ... | 2009 | 19632782 |
| dietary protein for young grazing sheep: interactions with gastrointestinal parasitism. | effects of protein supplementation and of nematode control on production responses in young grazing sheep and on nematode population dynamics were assessed. young merino wether sheep (n = 270) were allocated to one of three supplementation (su) treatments and one of three regimes of nematode control (drench, dr) in a factorial design. each of the nine treatments was replicated three times in a randomised complete block. animals received no supplement (su0) or were given supplements at a level eq ... | 1995 | 8747911 |